The HAPI Shorts program is a series of weekly lunch time sessions that you can enjoy in the comfort of your office. Each weekly session will be a 30 to 40-minute presentation followed by questions and answers.
All sessions will be conducted via Zoom. The sessions are FREE but we ask that you registered. A list of session that have been conducted is shown after the list of speakers.
Watch for information about our HAPI Shorts sessions in our monthly newsletter, Facebook page, and website calendar (visit calendar to register).
For HAPI member companies only, if you have 3 or more people interested in a session, HAPI offers to do a special scheduled session for your staff; these would only be for sessions presented by Jon Young. To schedule a session, please contact Jon at 847-4274 or by email at jon@hawaiiasphalt.org
Follows is a description of the HAPI Shorts sessions:
Title: GPR for In-Place Density
Speaker: Dr. Arudi (Raj) Rajagopal, President, Infrastructure Management and Engineering
The highway engineering community has been routinely using Ground Penetrating Radar (GPR) for many applications including: mapping type and thickness of pavement layers, detection of subsurface voids and subgrade moisture, deterioration in concrete pavements, rebar corrosion surveys, overlay debonding, etc. Recent investigations reveal potential of GPR to estimate density of newly placed asphalt layer. This presentation covers a review of recent and ongoing research, and a field experiment in Ohio to validate the applicability of GPR device for in-place density measurements.
Title: GPR for Pavement Thickness Determination
Speaker: Dr. Arudi (Raj) Rajagopal, President, Infrastructure Management and Engineering
Thickness of pavement layers is an important input for various routine activities such as: developing Pavement Management System, analysis of FWD data, overlay design, performance prediction, failure investigations and so on. Currently most agencies rely on core samples or sometimes the least historic documents. GPR is being used by many State DOTs and a few local agencies during the last decade to non-destructively collect pavement structure data. Several case studies are available comparing thickness of pavement layers from GPR and core samples. In this presentation, we compile a few case studies, reported margin of error and field variables affecting the results.
Title: Intro to Balanced Mix Design
Speaker: Jon M. Young, Executive Director, Hawaii Asphalt Pavement Industry
Balanced Mix Design (BMD) is coming soon to Hawaii. Working together, HDOT and HAPI, moving forward with the implementation.
BMD is an enhanced approach to designing asphalt paving mixtures to achieve a satisfactory balance between rutting resistance and crack resistance. It promises to result in longer lasting asphalt pavements.
This session will cover the basics of BMD and what’s happening in other states.
Title: Intro to High Friction Surface Treatments
Speaker: Jon M. Young, Executive Director, Hawaii Asphalt Pavement Industry
High-Friction Surface Treatment (HSFT) is not a new product, but it is something relatively new to streets and highways in Hawaii. What is a HFST, where is it used, and how is it installed? Learn how a HSFT improves the safety of the road.
Title: Intro to Open-Graded Mixes
Speaker: Jon M. Young, Executive Director, Hawaii Asphalt Pavement Industry
An Intro to Open-Graded Mixes will answer the following questions:
– What are open graded mixes?
– Differences from dense graded mixes?
– Where have they been used in Hawaii?
– Where could they be used in the future?
– What’s next?
Title: Intro to Perpetual Pavements
Speaker: Jon M. Young, Executive Director, Hawaii Asphalt Pavement Industry
This session is an overview of the design of perpetual pavements. Since 2001, the APA’s Perpetual Pavement Award program has recognized over 150 long-life pavements in 31 U.S. states and one Canadian province. These roads were all at least 35 years old when honored and had never experienced a structural failure. To qualify, a road could not have had more than 4 inches of new material added over the previous 35 years, and it could not have been resurfaced more frequently than once every 13 years.
Title: Intro to Stone Matrix Asphalt (SMA)
Speaker: Jon M. Young, Executive Director, Hawaii Asphalt Paving Industry
This session will introduce Stone Matrix Asphalt (SMA). SMA is a gap-graded hot mix asphalt (HMA) originally developed in Europe to maximize rutting resistance and durability. The mix design goal is to create stone-on-stone contact within the mixture. Since aggregates do not deform as much as asphalt binder under load, this stone-on-stone contact greatly reduces rutting.
Title: Intro to Void Reducing Asphalt Membrane
Speakers: Tim Zahrn, Specialty Products Area Manager and Todd Thomas, Technical Director–Specialty Products, both with Asphalt Materials, Inc.
Void Reducing Asphalt Membrane (VRAM) has been used to improve the performance of HMA longitudinal joints. In this session you will learn about VRAM and how it works to improve longitudinal joints. Topics include the technology behind VRAM, methods of application, and key specification items. The types of pavement surfaces and the various joint scenarios will also be discussed.
Title: Modified Binders 101
Speaker: Chris Lubbers, Technical Sales and Market Development Manager, Kraton Polymers US, LLC
In this session you will gain an understanding of the difference mixes that could be produced with a modified binder and what are the commonly used modifiers. The session will close with what modifier(s) is used in Hawaii and what agencies use mixes with modified binder.
Title: Pavement Distresses
Speaker: Mike Huner, Engineering Consultant, Huner Consulting, LLC
This session will discuss the FHWA’s LTPP Distress Identification Manual. Attendees will learn the definitions/descriptions, severity levels, and how to measure the various distresses. It is not always possible to identify the causes of the distress by only an observation of the pavement surface. The session will note items that may be indicative of the cause.
Title: PaveXpress for Porous Asphalt Design
Speaker: Jon M. Young, Executive Director, Hawaii Asphalt Paving Industry
This session will be an overview of PaveXpress and PaveInstruct, followed by the design of a porous asphalt section.
PAVExpress is a free web-based pavement design tool available for use by local agencies, engineers, and architects who need a reliable way to quickly determine the necessary pavement thickness for a given section of roadway or project.
The PAVEInstruct learning module is a web-based pavement design education system with video instruction by leading industry experts. PAVEInstruct accompanies PAVEXpress.
Title: Paving Equipment – Mat Defects
Speaker: Todd Mansell, Product Application Specialist, Caterpillar
Meeting and exceeding asphalt construction specifications on field projects relies on proper paving equipment maintenance, setup, and operation. This session will focus on what to look for on the paving equipment when you see mat defects.
Title: Random Sampling Locations
Speaker: Jon M. Young, Executive Director, Hawaii Asphalt Paving Industry
The purpose for sampling is to obtain an uncontaminated and representative sample of the material. Proper sampling is just as important as proper testing. Only a small portion of the total material placed is tested, so samples represent large investments. Samples must be randomly obtained.
This session will review the methodology used by HDOT for randomly determining the sampling location of uncompacted mix and cores from the mat, and location of cores along the longitudinal joint.
Title: Smoothness 101
Speaker: Brandon Silva, Vice President, Pavement Management Solutions, Inc.
Our HDOT has a smoothness specification for construction of new and resurfacing of existing asphalt paved roads. This session is an introduction to smoothness and will cover:
– What is pavement smoothness
– What affects pavement smoothness
– Key terms used such as IRI
– Equipment used to measure smoothness
In addition to our speaker, HAPI members Ames Engineering, Inc. and SSI will be on hand for questions and answers.
Title: Specifying Asphalt Pavement Mixes
Speaker: Jon M. Young, Executive Director, Hawaii Asphalt Paving Industry
It is important that the desired asphalt mix gets specified on the plans and in the specifications. This presentation reviews aggregate gradations and binders used in Hawaii and how they are shown in the plans and specifications.
Title: Use of Color in Communications
Speaker: Jon M. Young, Executive Director, Hawaii Asphalt Paving Industry
– Suggestions for emails and status reports that make it easy for the recipients to read, understand, and respond.
– Suggestions for emails for your consideration. These are suggestion that Young has found to be helpful based on his many years of experience.
– Use of color in communications that help direct the reader to highlights of the material being provided.
Title: Use of Recycled Materials in Pavements
Speaker: Jon M. Young, Executive Director, Hawaii Asphalt Paving Industry
Can Hawaii construct “sustainable roads” using waste tires, plastic, glass and old road pavement likely bound for landfill? Join us to learn about these potential recyclable materials and the status of their use in asphalt pavements on the mainland in Hawaii.
Title: You be the inspector!
Speaker: Jarrett Welch, Consultant, Quality Paving Consultants
In this session, you are the inspector at paving project site. The participants will view short (30-120 second) videos of various paving situations. After viewing each video, a group discussion moderated by the instructor will be conducted about the situation shown in the video.
Each session will feature different videos.
Future topics being considered include:
– Design with Construction in Mind
– Pavement Treatments for Hawaii Roads
– Sustainable Pavements
– Traffic Controls
Please send any suggestions you have for topics to Jon M. Young at jon@hawaiiasphalt.org.
Presenter’s bio
Speaker: Dr. Arudi (Raj) Rajagopal
Position: President, Infrastructure Management and Engineering
Dr. Arudi (Raj) Rajagopal is the president of Infrastructure Management and Engineering, a company that specializes in pavement design, evaluation, and management related programs. He was formerly a Faculty of Civil Engineering at the University of Cincinnati for over 12 years and University of Mississippi for 2 1/2 years. Dr. Rajagopal has published numerous articles and reports. He has used GPR for pavement type and thickness determination, to detect underground utilities, pavement structural analysis along with FWD etc. Dr. Rajagopal has served as Principal Investigator for several Ohio DOT research contracts including the one to investigate the applicability of GPR to measure asphalt density.
Speaker: Brandon Silva
Position: Vice President, Pavement Management Solutions, Inc.
Bio is forthcoming
Speaker: Chris Lubbers
Position: Technical Sales and Market Development Manager, Kraton Polymers US, LLC
Chris Lubbers currently serves as technical sales and market development manager for emulsions in Kraton Polymers’ Paving and Roofing business unit headquartered in Houston, TX. He received a B.S in Chemical Engineering from Ohio University and an M.S in Chemical Engineering from the University of Notre Dame.
Chris has spent the past sixteen years in the asphalt industry, primarily focused on polymer-modified emulsions and hot-mix paving binders as well as polymer-modified roofing membranes. He is an active member of AI, AEMA, AMAP, and the various regional pavement preservation partnerships (PPP’s) and user-producer groups (UPG’s).
Speaker: Jarrett Welch”
Position: Consultant, Quality Paving Consultants
Jarrett Welch is the President of Quality Paving Consultants. With over two decades of experience in the asphalt paving and construction business, he has become recognized as an expert and leader in the industry. Jarrett is well versed in aggregates, mixture designs, production and placement of asphalt pavement and new technologies. During his career he has assisted in the development and implementations of several specifications, writes for publications, and currently serves on many state and national committees.
Speaker: Jon M. Young
Position: Executive Director, Hawaii Asphalt Paving Industry
Jon Young has been the Executive Director of HAPI for over 9 years. Previous to that he spent 10 years as a Senior Project Manager at Belt Collins Hawaii (BCH). Before BCH he spent 10 years as the Design and Construction Site Development Manager for Gentry Homes, Ltd. His experiences have provided him the ability to see projects from the designer, contractor, and owner perspective.
Speaker: Mike Huner
Position: Engineering Consultant, Huner Consulting, LLC
Michael (Mike) Huner has worked for more than 25 years in various aspects of the asphalt industry ranging from Research & Testing to Field Engineering to Technical Services. He spent the first seven years of his professional career working for the National Center for Asphalt Technology at Auburn University, while simultaneously earning a Master’s degree in Pavement Materials. He spent the next five years as a Field Engineer for the Asphalt Institute, and then two more with an asphalt materials company, SemMaterials. Finally, before starting his current consulting business, he spent five years as the Technical Services Director for the Asphalt Division of the Tennessee Road Builders Association. Mike holds both a Bachelor’s and a Master’s degree in Civil Engineering and is a registered professional engineer in the states of Alabama and Tennessee.
Speaker: Tim Zahrn
Position: Specialty Products Area Manager, Asphalt Materials, Inc.
Tim has been with AMI since 2017 and his current responsibilities are to lead and support the use and growth of specialty asphalt products, including and J-Band and engineered emulsions for cold recycling.
Tim’s previous work experience includes 21 years with the Illinois Department of Transportation in various engineering positions including construction, design, operations, and local roads. He most recently completed 12 years as the Sangamon County Engineer in Springfield, Illinois, retiring from that position at the end of 2016.
Tim is a registered Professional Engineer in Indiana and Illinois. He enjoys traveling and spending time with family and an occasional round of golf.
Speaker: Todd Mansell
Position: Product Application Specialist, Caterpillar
Todd has been in the asphalt paving and construction business for over 25 years, working as an asphalt laboratory and field technician, laboratory manager, field inspector, paving quality manager and quality control manager for both government and private employers in both Canada and the United States. He has a passion for quality paving and for testing new and innovative paving equipment, technology and paving practices.
Speaker: Todd Thomas
Position: Technical Director–Specialty Products, Asphalt Materials, Inc.
Todd is a registered professional engineer and is a graduate of Purdue University. He has worked in the asphalt industry since 1991. He has been in various roles, from product leader to laboratory manager to field engineer in the hot-mix asphalt, pavement preservation, and in-place recycling areas. He is currently the technical director of specialty products in Asphalt Materials, Inc. in Indianapolis, Indiana and has been with the company since 2018.
2021 Sessions:
– 02/24/21: Intro to Balanced Mix Design
– 02/17/21: GPR for Pavement Thickness Determination
– 02/10/21: You Be The Inspector
– 02/03/21: PaveXpress for Porous Asphalt Design
– 01/27/21: Specifying Asphalt Pavement Mixes
– 01/20/21: Use of Color in Communications
– 01/13/21: HAPI Meeting: Meet our 2021 Scholarship Recipients
– 01/06/21: Intro to Perpetual Pavements
2020 Sessions:
– 12/16/20: Intro to Stone Matrix Asphalt
– 12/09/20: GPR for In-Place Density
– 12/02/20: Smoothness 101
– 11/18/20: Intro to Balance Mix Design
– 11/04/20: Paving Equipment – Mat Defects
– 10/28/20: Specifying Asphalt Pavement Mixes
– 10/21/20: Intro to High Surface Friction Treatments
– 10/14/20: Pavement Distresses
– 10/07/20: Intro to Open Graded Mixes
– 09/30/20: You Be the Inspector
– 09/23/20: Intro to Perpetual Pavements
– 09/16/20: Intro to Stone Matrix Asphalt
– 09/09/20: Intro to Balance Mix Design
– 09/08/20: Random Sampling Locations
– 09/02/20: Modified Binders 101
– 08/26/20: Specifying Asphalt Pavement Mixes
– 08/19/20: Intro to Open Graded Mixes
– 08/12/20: Intro to Stone Matrix Asphalt
– 08/05/20: Intro to Balance Mix Design
– 07/29/20: Specifying Asphalt Pavement Mixes
– 07/22/20: Intro to Open Graded Mixes
